Method of producing all-solid-state battery

Abstract

A method of producing an all-solid-state battery comprises preparing a second slurry which is a solid electrolyte slurry, and applying the second slurry to a foundation layer using a die head to form a solid electrolyte layer. A pressure P of the second slurry and a viscosity η of the second slurry inside the die head at a predetermined shear rate satisfy a relationship of P/4η<4. The foundation layer has a porosity within a range of 30% to 50%.

What is claimed is: 
     
         1 . A method of producing an all-solid-state battery, the method comprising:
 preparing a solid electrolyte slurry; and   applying the solid electrolyte slurry to a foundation layer using a die head to form a solid electrolyte layer, wherein   a pressure P of the solid electrolyte slurry and a viscosity η of the solid electrolyte slurry inside the die head at a predetermined shear rate satisfy a relationship of P/4η<4, and   the foundation layer has a porosity within a range of 30% to 50%.   
     
     
         2 . The method of producing an all-solid-state battery according to  claim 1 , wherein
 the predetermined shear rate is from 19 (1/s) to 80 (1/s), and   a flow speed of the solid electrolyte slurry inside the die head is from 1.9 (mm/s) to 16 (mm/s).